Messages in this thread | | | Date | Thu, 22 May 2014 15:34:01 +0800 | From | Jet Chen <> | Subject | Re: [net] WARNING: CPU: 1 PID: 1 at net/batman-adv/hard-interface.c:92 batadv_is_on_batman_iface() |
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On 05/22/2014 02:12 PM, Cong Wang wrote: > On Wed, May 21, 2014 at 9:42 PM, Jet Chen <jet.chen@intel.com> wrote: >> Hi Steffen, >> >> 0day kernel testing robot got the below dmesg and the first bad commit is >> >> git://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git master >> commit 78ff4be45a4c51d8fb21ad92e4fabb467c6c3eeb >> Author: Steffen Klassert <steffen.klassert@secunet.com> >> AuthorDate: Mon May 19 11:36:56 2014 +0200 >> Commit: David S. Miller <davem@davemloft.net> >> CommitDate: Wed May 21 02:08:32 2014 -0400 >> >> ip_tunnel: Initialize the fallback device properly >> We need to initialize the fallback device to have a correct mtu >> set on this device. Otherwise the mtu is set to null and the device >> is unusable. >> Fixes: fd58156e456d ("IPIP: Use ip-tunneling code.") >> Cc: Pravin B Shelar <pshelar@nicira.com> >> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> >> Signed-off-by: David S. Miller <davem@davemloft.net> >> >> +--------------------------------------------------------------------------------+------------+------------+ >> | >> | d8d33c3b8a | 78ff4be45a | >> +--------------------------------------------------------------------------------+------------+------------+ >> | boot_successes >> | 60 | 0 | >> | boot_failures >> | 0 | 20 | >> | >> WARNING:CPU:PID:at_net/batman-adv/hard-interface.c:batadv_is_on_batman_iface() >> | 0 | 20 | >> | backtrace:register_netdevice_notifier >> | 0 | 20 | >> | backtrace:batadv_init >> | 0 | 20 | >> | backtrace:kernel_init_freeable >> | 0 | 20 | >> +--------------------------------------------------------------------------------+------------+------------+ >> > > batman needs to fix: > > diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c > index b851cc5..fbda6b5 100644 > --- a/net/batman-adv/hard-interface.c > +++ b/net/batman-adv/hard-interface.c > @@ -83,7 +83,7 @@ static bool batadv_is_on_batman_iface(const struct > net_device *net_dev) > return true; > > /* no more parents..stop recursion */ > - if (net_dev->iflink == net_dev->ifindex) > + if (net_dev->iflink == 0 || net_dev->iflink == net_dev->ifindex) > return false; > > /* recurse over the parent device */ > Your patch fixes that issue.
Tested-by: Jet Chen <jet.chen@intel.com>
Thanks, Jet
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